Sunrise-Detox/web audio.html at main · CraftWho/Sunrise-Detox · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Ta-Da Sound Effect</title>
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            background-color: #222;
            font-family: sans-serif;
            color: white;
            margin: 0;
        }

        button {
            padding: 20px 40px;
            font-size: 24px;
            font-weight: bold;
            cursor: pointer;
            background-color: #f39c12;
            border: none;
            border-radius: 8px;
            color: white;
            box-shadow: 0 4px 0 #d35400;
            transition: all 0.1s;
        }

        button:active {
            transform: translateY(4px);
            box-shadow: 0 0 0 #d35400;
        }
    </style>
</head>
<body>

    <button id="playBtn">🎵 Play "Ta-Da!"</button>

    <script>
        // Initialize AudioContext
        const AudioContext = window.AudioContext || window.webkitAudioContext;
        const audioCtx = new AudioContext();

        function playTaDa() {
            // Browsers often suspend audio until user interaction
            if (audioCtx.state === 'suspended') {
                audioCtx.resume();
            }

            const now = audioCtx.currentTime;

            // --- Sound Synthesis Logic ---

            // Function to create a single brass note
            const playNote = (freq, startTime, duration, vol = 0.3) => {
                const osc = audioCtx.createOscillator();
                const gain = audioCtx.createGain();
                const filter = audioCtx.createBiquadFilter(); // Lowpass filter for "brass" muted effect

                // Use Sawtooth for a harsh, brassy tone
                osc.type = 'sawtooth';
                osc.frequency.value = freq;

                // Filter envelope (opens up brightly then closes slightly)
                filter.type = 'lowpass';
                filter.frequency.setValueAtTime(500, startTime);
                filter.frequency.linearRampToValueAtTime(3000, startTime + 0.05); // "Blare"
                filter.frequency.exponentialRampToValueAtTime(1000, startTime + duration);

                // Volume Envelope (ADSR-like)
                gain.gain.setValueAtTime(0, startTime);
                gain.gain.linearRampToValueAtTime(vol, startTime + 0.02); // Fast attack
                gain.gain.exponentialRampToValueAtTime(0.01, startTime + duration); // Release

                // Connect nodes: Osc -> Filter -> Gain -> Output
                osc.connect(filter);
                filter.connect(gain);
                gain.connect(audioCtx.destination);

                osc.start(startTime);
                osc.stop(startTime + duration);
            };

            // 1. The "Ta" (Pickup Note) - G3
            // Quick, short note leading in
            playNote(392.00, now, 0.15, 0.25);

            // 2. The "Da" (The Resolution Chord) - C Major
            // Hits slightly after the pickup. We stack multiple notes for a full sound.
            const impactTime = now + 0.12;
            const duration = 1.2;

            // Root (C4)
            playNote(261.63, impactTime, duration, 0.3);
            // Third (E4)
            playNote(329.63, impactTime, duration, 0.25);
            // Fifth (G4)
            playNote(392.00, impactTime, duration, 0.25);
            // Octave (C5) - Gives it the "shine"
            playNote(523.25, impactTime, duration, 0.2);

            // Optional: Add a slight detuned oscillator for thickness
            playNote(262.00, impactTime, duration, 0.1);
        }

        // Attach event listener
        document.getElementById('playBtn').addEventListener('click', playTaDa);
    </script>

</body>
</html>